On Mon, Mar 7, 2022 at 10:21 AM Larkin Lowrey <llowrey@xxxxxxxxxxxxxxxxx> wrote: > > I am seeing a 'check' speed regression between kernels 5.15 and 5.16. > One host with a 20 drive array went from 170MB/s to 11MB/s. Another host > with a 15 drive array went from 180MB/s to 43MB/s. In both cases the > arrays are almost completely idle. I can flip between the two kernels > with no other changes and observe the performance changes. > > Is this a known issue? I am not aware of this issue. Could you please share mdadm --detail /dev/mdXXXX output of the array? Thanks, Song
